CN107217692A - Consider the test device of soil body preconsolidation and the horizontal bearing capacity of single pile under cyclic load - Google Patents
Consider the test device of soil body preconsolidation and the horizontal bearing capacity of single pile under cyclic load Download PDFInfo
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- CN107217692A CN107217692A CN201710291458.0A CN201710291458A CN107217692A CN 107217692 A CN107217692 A CN 107217692A CN 201710291458 A CN201710291458 A CN 201710291458A CN 107217692 A CN107217692 A CN 107217692A
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- soil body
- pile
- bearing capacity
- model casing
- preconsolidation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of test device for considering soil body preconsolidation and the horizontal bearing capacity of single pile under cyclic load, the soil body in the case in simulation place is placed in model casing, the soil body buries test pile in case, vertical pre-pressing system includes reaction frame, hydraulic servo actuator and backing plate, reaction frame is fixed on model casing, the upper end of hydraulic servo actuator is fixed on reaction frame, and the motion end of hydraulic servo actuator is connected with backing plate, and backing plate is located at the top surface of the soil body in case；Horizontal addload system includes motor servo driver, hawser, assembly pulley and pile cover, pile cover is arranged on the top of test pile, one end connection of pile cover and hawser, hawser changes the other end behind direction by assembly pulley and is connected with motor servo driver, and assembly pulley is fixed on model casing；Data collecting system includes displacement meter, and displacement meter is located on pile crown, and displacement meter is connected with data collecting instrument.Effect of the present invention is preferably, the cycle is shorter, expense is relatively low, process simplification.
Description
Technical field
It is main the present invention relates to a kind of test device for considering the horizontal bearing capacity of single pile under soil body preconsolidation and cyclic load
To be applied to preconsolidation and cyclic load Single Pile water under the conditions of soil solidifying is not completed employed in laboratory test
Research in terms of flat bearing capacity, belongs to engineering test technical field.
Background technology
Because pile foundation has the advantages that high capacity, deformation are small, using more and more wider in industry and civil buildings.With
Urban architecture to high-rise development, the influence of cyclic load (such as wind load or earthquake load) to pile foundation becomes increasingly to weigh
Will.In order to obtain influence of the cyclic load to bearing capacity of pile foundation, the method frequently with field test or laboratory test is solved.Due to
The problems such as soil layer difference, cyclic load are difficult in field test, causes that the bearing capacity of pile foundation discreteness of field measurement is big, effect
It is really poor, it is difficult to obtain the changing rule of bearing capacity of pile foundation under matched cyclic load, and the cycle length of field test,
Costly, process is complicated, equally, in order to reach the degree of consolidation similar with live soil layer, it is necessary to remodeling to laboratory test
Soil body preconsolidation.
The content of the invention
In order to overcome, the effect of existing horizontal bearing capacity of single pile on-the-spot test mode is poor, the cycle is longer, costly, mistake
The complicated deficiency of journey, a kind of effect of present invention offer is preferably, the cycle is shorter, expense is relatively low, the process simplification consideration soil body is pre- solid
The test device of knot and cyclic load Single Pile horizontal bearing capacity.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of test device for considering soil body preconsolidation and the horizontal bearing capacity of single pile under cyclic load, including model casing,
The soil body, institute in the case in place are simulated in laying in vertical pre-pressing system, horizontal addload system and data collecting system, the model casing
State the soil body in case and bury test pile, the vertical pre-pressing system includes reaction frame, hydraulic servo actuator and backing plate, the counter-force
Frame is fixed on the model casing, and the upper end of the hydraulic servo actuator is fixed on reaction frame, the hydraulic servo start
The motion end of device is connected with backing plate, and the backing plate is located at the top surface of the soil body in case；The horizontal addload system includes servomotor
Driver, hawser, assembly pulley and pile cover, the pile cover are arranged on the top of test pile, one end of the pile cover and hawser
Connection, the hawser changes the other end behind direction by assembly pulley and is connected with motor servo driver, and the assembly pulley is fixed
On the model casing；The data collecting system includes displacement meter, and the displacement meter is located in stake top, the displacement meter and number
Connected according to Acquisition Instrument.
Further, the model casing is assembled by casing, hoop, vertical hoop, and hoop is connected with casing, indulges hoop and hoop
Connection.
Further, the bottom half of the model casing is provided with loaded filter, and the bottom of the loaded filter sets drain bar.
The drain bar upper surface is provided with drainage belt, and the outlet of the drainage belt is connected with drainpipe.
The reaction frame is provided with positioning hole, and the hydraulic servo actuator is fixed on by bolt through the positioning hole
On the reaction frame.
Beneficial effects of the present invention are mainly manifested in：(1) preconsolidation of the soil body is realized.For pile body, Neng Goushi
The experimental enviroment of existing soil body preconsolidation, the degree of consolidation of actual soil layer is adjusted according to precompressed degree.The present apparatus uses model casing, liquid
Press servo actuator, backing plate etc. to realize simulation, and control by hydraulic servo actuator required uniform loading and the soil body
Deflection.(2) CYCLIC LOADING is realized.Experiment is using motor servo driver, hawser, assembly pulley, pile cover composition adding carrier
System.CYCLIC LOADING is realized along reverse rotation by the motor of motor servo driver.With control load size and it can be followed during loading
Ring loading frequency, to imitate the cyclic loads such as wind load and earthquake load.(3) effect is good.Due to live stratum and CYCLIC LOADING
Complexity, field test is difficult to obtain stable loading, causes that the discreteness of field measurement test data is big, effect is poor, and this
Device can provide identical experimental condition, it is ensured that the reliability of result of the test.(4) cycle is short, expense bottom, easy to operate.It is existing
The cycle length of field experiment, costly and test procedure are complicated, and the present apparatus is simple to operate, and testing expenses are low, short time limit, and repeatable
Use.
Brief description of the drawings
Fig. 1 is the structural representation for the test device for considering soil body preconsolidation and cyclic load Single Pile horizontal bearing capacity.
Fig. 2 is model casing figure.
Fig. 3 is reaction frame figure.
Fig. 4 is model casing bottom detail structure figure.
Fig. 5 is drain bar detail structure figure.
Fig. 6 is backing plate master drawing.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
1~Fig. 6 of reference picture, the test dress of a kind of consideration soil body preconsolidation and the horizontal bearing capacity of single pile under cyclic load
Put, including model casing, vertical pre-pressing system, horizontal addload system, data collecting system and the part of computer control system five.Institute
It is assembled by lucite, hoop, vertical hoop to state model casing.Hoop is connected with lucite, and vertical hoop is connected with hoop.It is described
Vertical pre-pressing system is by reaction frame, positioning hole, hydraulic servo actuator, backing plate composition.The hydraulic servo actuator can pacify
It is placed on positioning hole, positioning hole is evenly distributed on reaction frame.The load of actuator is uniformly applied on the soil body by backing plate.It is described
Horizontal addload system is made up of motor servo driver, hawser, assembly pulley, pile cover.Hawser changes direction by assembly pulley,
And connect pile cover and driver.The data collecting system is made up of LVDT displacement meters and data collecting instrument, the computer
Band control software, can control the running of driver and actuator in control system.
Consider the test device of soil body preconsolidation and the horizontal bearing capacity of single pile under cyclic load, including following part：Mould
Molding box 1；The precompressed soil body 2 in case；Test pile 3；Hoop 4；Vertical hoop 5；Reaction frame 6；Hydraulic servo actuator 7；Backing plate 8；Positioning hole
9；Motor servo driver 10；Hawser 11；Assembly pulley 12；Pile cover 13；LVDT displacement meters 14；Support 15；Loaded filter 16；Draining
Plate 17；Drainage belt 18；Drainpipe 19；Water valve 20；Data collecting instrument 21；Computer control system 22.
Wherein, it is enclosed on outside hoop 4 on the lucite of model casing 1, vertical hoop is welded on hoop.Hydraulic servo actuator 7
It is fixed on by bolt through positioning hole 9 on reaction frame 6, backing plate 8 is located in case above the precompressed soil body 2, is watched for transmitting hydraulic pressure
Take the pressure of actuator 7.Pile cover 13 is socketed in the top of test pile 3, and hawser 11 is socketed on pile cover 13, and the other end bypasses cunning
Wheel group 12 is connected with motor servo driver.Support 15 is welded on reaction frame 6, for fixing LVDT displacement meters 14.Loaded filter
16 are placed in drain bar 17 and case between the precompressed soil body 2.LVDT displacement meters 14 are believed with data collecting instrument 21 with data line transfer
Number, then data conversion is transferred to computer control system 22.
The experiment pile cover can voluntarily be selected according to the shape of stake.The reaction frame uses spiral shell with hydraulic servo actuator
Tether and connect.The outlet of the drainage belt is corresponding with drainpipe, is easy to discharge water.
In this case history, based on pile tube, pipe pile long 16m, a diameter of 0.8m.Surveyed according to live
Report, the soil layer that pile body is passed through from top to bottom distinguish plain fill, sandy silt, very soft sill clay, silty clay, middle sand,
Circle gravel, thickness is respectively 2m, 3.5m, 4m, 2.5m, 2m, 4m, and pile body enters gravel layer 2m.The box house of this experimental model case
Size is diameter 800mm, high 1500mm.Lucite is welded to form framework as tank wall, shaped steel.Motor servo driver is used
ASD-A2 serial motors, hydraulic servo actuator uses YZ-ACSD608 AC servo machinery driving devices, installs 4, Ke Yilian
Dynamic loading.The diameter of backing plate is as model casing inside diameter, and internal diameter is slightly larger than stake footpath.Drain bar is made using lucite,
Thickness is 2cm.Loaded filter uses nylon net cloth.
The present invention implementation steps be：
1) size, shape, material of test pile are determined.The test pile used is determined according to the rigidity of the engineering pile at scene
Material, can use pvc pipe or steel pipe.Shape can be round and square two kinds.Test pile size is determined in proportion.This experiment
By 20:1 ratio adjustment, circular using pvc pipe stake, stake footpath is 40mm, height 800mm.
2) clay distribution is determined.The length of report and pile body can be surveyed with base area to determine the soil layer required for experiment.Choosing
The soil layer for taking pile body to pass through is tested.In this experiment, that is, test soil layer and distinguish plain fill, sandy silt, silt from top to bottom
Shale silty clay, silty clay, middle sand, circle gravel.
3) corresponding soil thickness is determined.Report can be surveyed with base area to determine corresponding the thickness of the layer in experiment.This examination
In testing, soil thickness presses 20:1 reduces.Thickness is respectively 0.1m, 0.175m, 0.2m, 0.125m, 0.1m, 0.2m, and pile body enters
Gravel layer 0.1m.
4) drain bar and loaded filter are laid.Water valve is closed, osculum should be corresponding with position of drain pipe, so as in soil solidifying
During smoothly draining.It is laid in after anti-filter paper is moistened slightly with water on drain bar, the diameter of loaded filter will be slightly greater than
The diameter of model casing, drain bar can be completely covered.
5) stake end seal is closed.In Practical Project, the ring of closing can be formed because pipe pile end portion is present in soil compaction effect, stake core
Border.And also to which when preventing from test laying the soil body, the soil body enters in test pile stake core.So being covered using waterproof geotextiles
Cover and closed again with fixation with steel wire at stake end.
6) soil layer is laid.Gravel layer is equably laid on loaded filter, when laying depth reaches the position at an end；By stake
Body is placed perpendicularly on round gravel soil layer, positioned at the center of model casing；It is further continued for laying according to each soil thickness.
7) backing plate is placed.Backing plate is placed on the soil body through pile body, and ensures that backing plate is in level by horizon rule
Position.
8) the vertical prefabricating load of the soil body and actuator number are determined.Soil layer position and thickness in Practical Project, by
Weight stress theory obtains the vertical prefabricating load of the soil body.And the number of hydraulic servo actuator is determined according to load, can
Think 2,4,6 and 8, this experiment uses 4.
9) actuator and reaction frame are installed.4 hydraulic servo actuators are uniformly placed in into blending bolt on reaction frame to consolidate
It is fixed, then reaction frame is reliably connected with model casing.
10) pile cover and displacement test system are placed.First pile cover is placed on test pile, then with steel wire rope from two ends by stake
Cap and the connection of servomotor actuator, wherein one end passes through model casing bottom.LVDT displacement meters are placed at pile crown again, and with
Data collecting instrument is connected.
11) classification applies prefabricating load.Water valve is opened, controls hydraulic servo actuator to implement classification by computer vertical
Precompressed, consolidates soil layer.Reach and stop loading after target load and maintain target loading level.In consolidation process, hole
Gap water can be discharged from the drainpipe of model casing bottom.
12) horizontal addload rank and CYCLIC LOADING cycle are determined, level is carried out to hierarchical loading.10 are used in the present embodiment
Level loading, each loading capacity is estimate pile foundation level bearing capacity 1/10.Every grade of loading is all to use CYCLIC LOADING 5 times, every time
CYCLIC LOADING is dead load 4 minutes, then unloads holding 2 minutes.Utilize computer-controlled servo motor driver loaded value and circulation
Frequency, realizes and forward, inversely loads.
13) Test Data Collecting.Utilize the tests such as the horizontal displacement after the completion of the data collecting instrument acquisition each Load-unload of stake
Data, while the horizontal loading value that record is loaded every time, and draw pile foundation level bearing capacity and the curve map of displacement
14) determined to stop loading standard according to specification.According to specification《Architecture foundation pile inspection specifications》(JGJ 106-
2014) when there are following any situations, experiment is stopped.Horizontal displacement exceedes permissible value；Horizontal displacement is more than 40mm；Stake
Body fractures.
15) data preparation.Displacement-load curve is drawn using computer control system, and by specification《Architecture foundation pile is detected
Technical specification》(JGJ 106-2014) requirement, produces the previous stage load substantially dropped suddenly with curve and is defined as the experiment single pile
Ultimate lateral bearing capacity.
16) experiment soil sample is cleared up, experimental rig is dismantled.First remove reaction frame, then order cleaning experiment from top to down
Cleaned up with the soil body, then by the inwall of model casing and drain bar so that next time uses.
17) cyclic load Single Pile ultimate lateral bearing capacity characteristic value is determined.Determine the standard value of horizontal bearing capacity of single pile.
Repeat the above steps 4) -16), the cyclic load Single Pile horizontal bearing capacity characteristic value of one group of three pile is obtained, when three piles are special
When value indicative extreme difference is no more than the 30% of average value, its average value is taken as the characteristic value of cyclic load Single Pile horizontal bearing capacity.
Claims (5)
1. a kind of test device for considering soil body preconsolidation and the horizontal bearing capacity of single pile under cyclic load, it is characterised in that：Bag
Include the case in laying simulation place in model casing, vertical pre-pressing system, horizontal addload system and data collecting system, the model casing
The soil body buries test pile in the interior soil body, the case, and the vertical pre-pressing system includes reaction frame, hydraulic servo actuator and pad
Plate, the reaction frame is fixed on the model casing, and the upper end of the hydraulic servo actuator is fixed on reaction frame, the liquid
The motion end of pressure servo actuator is connected with backing plate, and the backing plate is located at the top surface of the soil body in case；The horizontal addload system bag
Motor servo driver, hawser, assembly pulley and pile cover are included, the pile cover is arranged on the top of test pile, the pile cover and steel
One end connection of silk rope, the hawser changes the other end behind direction by assembly pulley and is connected with motor servo driver, described
Assembly pulley is fixed on the model casing；The data collecting system includes displacement meter, and the displacement meter is located on pile cover, described
Displacement meter is connected with data collecting instrument.
2. the test device of soil body preconsolidation and the horizontal bearing capacity of single pile under cyclic load is considered as claimed in claim 1,
It is characterized in that：The model casing is assembled by casing, hoop, vertical hoop, and hoop is connected with casing, indulges hoop and connects with hoop
Connect.
3. soil body preconsolidation and the test dress of the horizontal bearing capacity of single pile under cyclic load are considered as claimed in claim 1 or 2
Put, it is characterised in that：The bottom half of the model casing is provided with loaded filter, and the bottom of the loaded filter sets drain bar.
4. the test device of soil body preconsolidation and the horizontal bearing capacity of single pile under cyclic load is considered as claimed in claim 3,
It is characterized in that：The drain bar upper surface is provided with drainage belt, and the outlet of the drainage belt is connected with drainpipe.
5. soil body preconsolidation and the test dress of the horizontal bearing capacity of single pile under cyclic load are considered as claimed in claim 1 or 2
Put, it is characterised in that：The reaction frame is provided with positioning hole, and the hydraulic servo actuator passes through the positioning hole by bolt
It is fixed on the reaction frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710291458.0A CN107217692B (en) | 2017-04-28 | 2017-04-28 | Testing device for single-pile horizontal bearing capacity under consideration of soil body pre-consolidation and cyclic load |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710291458.0A CN107217692B (en) | 2017-04-28 | 2017-04-28 | Testing device for single-pile horizontal bearing capacity under consideration of soil body pre-consolidation and cyclic load |
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| Publication Number | Publication Date |
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| CN107217692A true CN107217692A (en) | 2017-09-29 |
| CN107217692B CN107217692B (en) | 2022-12-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113533021A (en) * | 2021-06-28 | 2021-10-22 | 王志 | Vertical loading device for overall static performance of horizontal lifeline device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020162400A1 (en) * | 2001-03-05 | 2002-11-07 | Ming Xie | Multiaxial high cycle fatigue test system |
| CN102081021A (en) * | 2010-12-28 | 2011-06-01 | 长安大学 | Soil consolidation settlement meter of centrifugal model testing device |
| CN102312449A (en) * | 2010-07-02 | 2012-01-11 | 同济大学 | Simulation long board-peg work centrifugal model and test unit and method thereof |
| CN102607754A (en) * | 2012-03-16 | 2012-07-25 | 东南大学 | Device for measuring negative skin friction of pile soil |
| CN104631519A (en) * | 2015-01-13 | 2015-05-20 | 河海大学 | Pile foundation bearing characteristic model test device and method under complicated load effect |
| CN105002938A (en) * | 2015-07-29 | 2015-10-28 | 浙江大学 | One-dimensional horizontal circulation load loading device and experiment method thereof |
| CN106088169A (en) * | 2016-07-26 | 2016-11-09 | 浙江大学 | Multiple degrees of freedom CYCLIC LOADING device for offshore wind turbine foundation laboratory test research |
-
2017
- 2017-04-28 CN CN201710291458.0A patent/CN107217692B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020162400A1 (en) * | 2001-03-05 | 2002-11-07 | Ming Xie | Multiaxial high cycle fatigue test system |
| CN102312449A (en) * | 2010-07-02 | 2012-01-11 | 同济大学 | Simulation long board-peg work centrifugal model and test unit and method thereof |
| CN102081021A (en) * | 2010-12-28 | 2011-06-01 | 长安大学 | Soil consolidation settlement meter of centrifugal model testing device |
| CN102607754A (en) * | 2012-03-16 | 2012-07-25 | 东南大学 | Device for measuring negative skin friction of pile soil |
| CN104631519A (en) * | 2015-01-13 | 2015-05-20 | 河海大学 | Pile foundation bearing characteristic model test device and method under complicated load effect |
| CN105002938A (en) * | 2015-07-29 | 2015-10-28 | 浙江大学 | One-dimensional horizontal circulation load loading device and experiment method thereof |
| CN106088169A (en) * | 2016-07-26 | 2016-11-09 | 浙江大学 | Multiple degrees of freedom CYCLIC LOADING device for offshore wind turbine foundation laboratory test research |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113533021A (en) * | 2021-06-28 | 2021-10-22 | 王志 | Vertical loading device for overall static performance of horizontal lifeline device |
| CN113533021B (en) * | 2021-06-28 | 2024-06-04 | 王志 | Vertical loading device for overall static performance of horizontal lifeline device |
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